Operating System (OS)
Data encryption

is mostly used by public networks
is not necessary, since data cannot be intercepted
cannot be used by private installations
None of these
is mostly used by financial networks

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Operating System (OS)
Swapping

does not work with overlaying
None of these
works best with many small partitions
allows each program in turn to use the memory
allows many programs to use memory simultaneously

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Operating System (OS)
Memory

is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
is typically characterized by interactive processing and time-slicing of the CPU
None of these
is a sequence of instructions

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